import logging
from django.db import DatabaseError
from rest_framework.views import exception_handler
from rest_framework.response import Response
from rest_framework import status

logger = logging.getLogger("django")

def custom_exception_handler(exc,context):
    response = exception_handler(exc,context)
    # 2 drf 无法识别的异常
    if response is None:
        if isinstance(exc,DatabaseError):
            logger.error("'数据库操作异常！[%s] %s' % (view, exc)")
            response = Response({'errmsg': '服务器内部错误'}, status=status.HTTP_507_INSUFFICIENT_STORAGE)
        elif isinstance(exc, ZeroDivisionError):
            logger.error('计算异常！[%s] %s' % (view, exc))
            response = Response({'errmsg': '除数不能为0!'}, status=status.HTTP_507_INSUFFICIENT_STORAGE)
    return response
